When you think of skeleton watches, images of delicate, fragile timepieces that spend more time in a safe than on a wrist often come to mind. The Armin Strom One Week Skeleton challenges that notion. It's a watch that invites daily wear, with a robust in-house movement and a case designed for comfort. But does it live up to the promise? I spent a week with it to find out.
Manufacture Heritage
Armin Strom is a name that resonates with aficionados of skeletonization. Founded in 1967 by Armin Strom himself, the brand gained fame for hand-engraved, openworked pocket watches and wristwatches. After a period of quiet, the brand was revived in 2006 with a focus on producing in-house movements and innovative complications. The One Week Skeleton is a product of this modern era, blending traditional skeleton artistry with contemporary engineering.
The brand is based in Biel/Bienne, Switzerland, and prides itself on vertical integration—most components are manufactured in-house. The One Week Skeleton houses the Calibre ARM16, a hand-wound movement developed and assembled by Armin Strom. This movement is a testament to their commitment to independent watchmaking.
Movement: The Heart of the Skeleton
The Cal. ARM16 is a manual-wind movement with a 7-day power reserve, which is the namesake of the One Week collection. It operates at a conservative 21,600 vph (3 Hz), which is perfect for a long power reserve—it reduces energy consumption. The movement is fully skeletonized, with bridges and plates cut away to reveal the gears, springs, and levers. Each bridge is hand-engraved and finished with a frosted texture, contrasting with the polished bevels.
The power reserve indicator is located on the case back, which is an interesting choice. It's visible through the sapphire exhibition back, but not while wearing the watch. Some might prefer it on the dial, but it keeps the front clean and focused on the skeletonization. The balance wheel at 6 o'clock is the focal point, and it's beautifully framed by the openworked architecture.
Winding the watch is a tactile pleasure. The crown is knurled and easy to grip, and you can feel the mainspring tension building. A full wind takes about 40 turns, and the watch runs for a full seven days—I tested it, and it stopped at exactly 7 days and a few hours. The accuracy was impressive: +4 seconds per day in my week of testing.
Case and Wearability
The 42mm stainless steel case is a sweet spot for many wrists. It's not too large, not too small. The lug-to-lug of 48mm ensures it doesn't overhang my 6.75-inch wrist. The lugs are curved and short, which makes the watch sit snugly against the skin. The case thickness of 12.5mm is reasonable for a hand-wound with a big barrel.
On the wrist, the watch feels balanced. The weight is around 90-95 grams on the leather strap, which is light enough for all-day comfort. The skeletonized dial reduces metal, but the case is solid. The strap is a high-quality leather with a pin buckle, which is secure and low-profile. I wore it in the office, at dinner, and even while doing light chores—it never felt fragile.
One thing to note: the water resistance is only 50 meters, so it's not suitable for swimming or showering. This is typical for a dressy skeleton, but something to keep in mind if you're an active person.
Legibility and Lume
Legibility is a challenge for any skeleton watch. The One Week Skeleton does a decent job, with the hands being the most prominent elements. They are polished and have a contrasting shape—the hour hand is a dagger, the minute hand is a needle. There's no lume, so in the dark, you're out of luck. But in daylight, the hands are easy to read against the openwork. The dial has a silvered flange with minute markers, which helps.
The power reserve is only visible on the back, which is a bit inconvenient. If you're not in the habit of checking the back, you might forget to wind it. But the seven-day reserve means you only need to wind it once a week, so it's not a daily hassle.
Occasions and Presence
This watch is a chameleon. Under a suit, it adds a touch of mechanical artistry. In casual attire, it's a conversation starter. It's not a sport watch, but it's not strictly formal either. It's a daily wearer for the horologically inclined.
Wrist presence is high—I'd give it a 4 out of 5. It doesn't scream for attention like a Hublot, but it rewards a closer look. The skeletonization is intricate, and the movement is a miniature work of art. People who notice will ask about it.
Reference Variants and Pricing
The One Week Skeleton is available in several variants. The standard stainless steel version (ref. ST16-01) has rhodium-plated bridges. There's a rose gold version (ST16-02) with gold accents, and a limited edition with blue PVD bridges (ST16-03). All come on leather straps. The price for the steel version is around $14,500, which is competitive for an independent with an in-house skeleton movement.
In the pre-owned market, you can find examples for $9,000-$12,000, making it a decent value if you're willing to buy used. The brand's production is limited, so it holds value well.
Service and Maintenance
Like most mechanical watches, the One Week Skeleton should be serviced every 5 years. Armin Strom recommends their own service center, but any competent watchmaker can handle it. The cost is around $750, which is reasonable for a skeleton movement that requires careful disassembly.
Comparison with Other Skeletons
In the same price range, you might consider the Girard-Perregaux Laureato Skeleton, which offers an integrated bracelet and a more sporty look. The Hublot Big Bang Unico Skeleton is bolder and larger, but with a lower power reserve. The Zenith Defy Classic Skeleton is more affordable but uses a modified movement. The Armin Strom stands out for its hand-finishing and the impressive 7-day reserve.
Final Thoughts
The Armin Strom One Week Skeleton is a rare beast: a skeleton watch you can actually live with. It's comfortable, accurate, and visually stunning. The lack of lume and water resistance are minor quibbles, but they don't detract from the overall experience. If you want a piece of haute horlogerie that you'll wear every day, this is a top contender.
